How to solve Unit logstash.service could not be found
Check the logstash service status
[root@syslog ~]# service logstash status
Redirecting to /bin/systemctl status logstash.service
Unit logstash.service could not be found.
[root@syslog ~]#
Running following command
[root@syslog ~]# /usr/share/logstash/bin/system-install /etc/logstash/startup.options systemd
Using provided startup.options file: /etc/logstash/startup.options
Manually creating startup for specified platform: systemd
/usr/share/logstash/vendor/bundle/jruby/2.5.0/gems/pleaserun-0.0.31/lib/pleaserun/platform/base.rb:112: warning: constant ::Fixnum is deprecated
Successfully created system startup script for Logstash
[root@syslog ~]#
Check service status and start the service
[root@syslog ~]# service logstash status Redirecting to /bin/systemctl status logstash.service ● logstash.service - logstash Loaded: loaded (/etc/systemd/system/logstash.service; disabled; vendor preset: disabled) Active: inactive (dead) [root@syslog ~]# [root@syslog ~]# service logstash start Redirecting to /bin/systemctl start logstash.service [root@syslog ~]# service logstash status Redirecting to /bin/systemctl status logstash.service ● logstash.service - logstash Loaded: loaded (/etc/systemd/system/logstash.service; disabled; vendor preset: disabled) Active: active (running) since Tue 2020-06-30 16:05:17 WIB; 2s ago Main PID: 26344 (java) Tasks: 24 (limit: 26213) Memory: 237.8M CGroup: /system.slice/logstash.service └─26344 /bin/java -Xms1g -Xmx1g -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -Djava.a> Jun 30 16:05:17 syslog systemd[1]: Started logstash. [root@syslog ~]#